.swiper-slide {
    text-align: center;
    font-size: 18px;
    background: #fff;
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
}

.swiper-slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiper-slide{
    width: 100%;
    height: 100%;
}

.navigation{
    width: 100%;
    height: 100px;
    background:rgb(60,140,255);
    // position:absolute;
    // top: 100px;
    }

.PicOne{
    float: left;
    padding-top: 30px;
}

.navigationul{
    list-style:none;
    padding-left: 40%;
    color: #fff;
    line-height: 100px;
}

.navigationul li{
    float: left;
    padding-left: 9%;
}


.mission{
    width: 30%;
    height: 300px;
    background: #fff;
    position:relative ;
    top: 200px;
}

.Content1{
    width: 100%;
    height: 500px;
    background: #fff;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column-reverse;
    align-content: center;
}

.aa {
    width: 50%;
    height: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .dd {
    text-align: center;
    font-size: 18px;
    background: #fff;
    height: calc((100% - 30px) / 2);

    /* Center slide text vertically */
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
  }


  .Content2{
    width: 100%;
    height: 250px;
    margin-top: 20%;
    background: #fff;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column-reverse;
    align-content: center;
  }

  .mark{
    margin-left: 30%;
  }
  .Content3{
    width: 100%;
    height: 250px;
    margin-top: 20%;
    background: #fff;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column-reverse;
    align-content: center;
  }


  .Content4 {
    width: 100%;
    height: 200px;
    background: #fff;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column-reverse;
    align-content: center;
}

.The{
    flex-basis: 20%;
    margin-left: 10%;
}

.end{
    width: 100%;
    height: 200px;
    background: rgb(60,140,255);
    display: flex;
    flex-wrap: wrap;
    flex-direction: column-reverse;
    align-content: center;
}

.end-content{
    flex-basis: 10%;
    margin-left: 10%;
    color: #fff;
}

.end-content ul{
    list-style:none;
}

.end-Tail{
    width: 100%;
    height: 200px;
    background: rgb(60,140,255);
}

.content-Tail{
    float: left;
    padding-top: 5%;
    padding-left: 15%;
}

.content-Tail1{
    float: right;
    color: #fff;
    padding-top: 5%;
    padding-right: 15%;
}

@media only screen and (max-width: 500px) {
    .PicOne{width: 100%; height: 200px;}
    .Content1 div{width: 100%;}
    .Content2 div{width: 100%;}
    .Content3 div{width: 100%;}
    .Content4 .The{flex-basis: 100%;}
    .end .end-content{flex-basis: 100%;}
    .end-Tail .content-Tail{width: 100%;}
    .end-Tail .content-Tail1{width: 100%;}

}